Home / 70,890.67-97,828.37-40,680.75

Finding the Fourth Proportional to 70,890.67, 97,828.37 and 40,680.75

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Solution

The fourth proportional to 70,890.67, 97,828.37 and 40,680.75 is: 56,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.67 : 97,828.37 = 40,680.75 : x
  2. Step 2: Convert to fraction form
    70,890.67/97,828.37 = 40,680.75/x
  3. Step 3: Cross multiply
    70,890.67x = 97,828.37 × 40,680.75
  4. Step 4: Simplify right side
    70,890.67x = 3,979,731,778.88
  5. Step 5: Solve for x
    x = 3,979,731,778.88/70,890.67
  6. Step 6: Final answer
    x = 56,139.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.